Operation (backup, recovery, cleanup) fails with the following error:

Windows error: (0x8007051F) There are currently no logon servers available to service the logon request


  1. You set up a backup task with cleanup scheme By number of backups and choose to start cleanup before backup.

  2. After you run the backup several times, recovery points in Show backups show one more recovery point than the number of backups specified.


This is by design.

  1. You create a backup using Version 12 format.
  2. An operation with archive (e.g. applying retention rules) fails with the error message

    Failed to lock the file


Almost always, the recommended and sufficient way to completely uninstall an Acronis Cyber Backup Cloud Agent for Linux is to follow Acronis Cyber Protect Cloud: manual uninstallation and execute (as root):

/usr/lib/Acronis/BackupAndRecovery/uninstall/uninstall -a


You have scheduled multiple off-host validation and cleanup tasks. However, these tasks fail to start at the scheduled time and you receive the following error message:

Job doesn't fit into currently loaded job list

Attempting to perform the same tasks manually succeeds without errors.


This is a known issue in the product.


A permanent fix will be implemented with version 16 of Acronis Cyber Protect.



Backup, replication or another activity fails with:

The path <path> does not exist.

For example: The path "F:/" does not exist.

Or, in older builds:

Windows error: (0x80070002) The system cannot find the file specified